NONINTEREST INCOME - Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Other income
Revenue from External Customer [Line Items]
Noninterest fee income	$ 15,720	$ 8,633	$ 28,273	$ 17,318
Managed service fees
Revenue from External Customer [Line Items]
Noninterest fee income	4,387	4,504	8,225	8,113
Currency preparation
Revenue from External Customer [Line Items]
Noninterest fee income	929	1,160	1,800	2,108
ATM loss protection
Revenue from External Customer [Line Items]
Noninterest fee income	674	628	1,282	1,250
Capital market revenue
Revenue from External Customer [Line Items]
Noninterest fee income	3,437	0	4,945	0
Miscellaneous products and services
Revenue from External Customer [Line Items]
Noninterest fee income	$ 6,293	$ 2,341	$ 12,021	$ 5,847